1 /******************************************************************************
3 * Copyright(c) 2009-2012 Realtek Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
26 * Larry Finger <Larry.Finger@lwfinger.net>
28 *****************************************************************************/
41 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
43 __le16 fc = rtl_get_fc(skb);
45 if (unlikely(ieee80211_is_beacon(fc)))
47 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
49 if (ieee80211_is_nullfunc(fc))
52 /* Kernel commit 1bf4bbb4024dcdab changed EAPOL packets to use
53 * queue V0 at priority 7; however, the RTL8192SE appears to have
54 * that queue at priority 6
56 if (skb->priority == 7)
61 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
62 struct rtl_stats *pstats, u8 *pdesc,
63 struct rx_fwinfo *p_drvinfo,
64 bool packet_match_bssid,
68 struct rtl_priv *rtlpriv = rtl_priv(hw);
69 struct phy_sts_cck_8192s_t *cck_buf;
70 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
71 s8 rx_pwr_all = 0, rx_pwr[4];
72 u8 rf_rx_num = 0, evm, pwdb_all;
73 u8 i, max_spatial_stream;
74 u32 rssi, total_rssi = 0;
75 bool is_cck = pstats->is_cck;
77 pstats->packet_matchbssid = packet_match_bssid;
78 pstats->packet_toself = packet_toself;
79 pstats->packet_beacon = packet_beacon;
80 pstats->rx_mimo_sig_qual[0] = -1;
81 pstats->rx_mimo_sig_qual[1] = -1;
84 u8 report, cck_highpwr;
85 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
87 if (ppsc->rfpwr_state == ERFON)
88 cck_highpwr = (u8) rtl_get_bbreg(hw,
89 RFPGA0_XA_HSSIPARAMETER2,
95 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
96 report = cck_buf->cck_agc_rpt & 0xc0;
100 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
103 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
106 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
109 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
113 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
114 report = p_drvinfo->cfosho[0] & 0x60;
115 report = report >> 5;
118 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
121 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
124 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
127 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
132 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
134 /* CCK gain is smaller than OFDM/MCS gain, */
135 /* so we add gain diff by experiences, the val is 6 */
139 /* modify the offset to make the same gain index with OFDM. */
140 if (pwdb_all > 34 && pwdb_all <= 42)
142 else if (pwdb_all > 26 && pwdb_all <= 34)
144 else if (pwdb_all > 14 && pwdb_all <= 26)
146 else if (pwdb_all > 4 && pwdb_all <= 14)
149 pstats->rx_pwdb_all = pwdb_all;
150 pstats->recvsignalpower = rx_pwr_all;
152 if (packet_match_bssid) {
154 if (pstats->rx_pwdb_all > 40) {
157 sq = cck_buf->sq_rpt;
163 sq = ((64 - sq) * 100) / 44;
166 pstats->signalquality = sq;
167 pstats->rx_mimo_sig_qual[0] = sq;
168 pstats->rx_mimo_sig_qual[1] = -1;
171 rtlpriv->dm.rfpath_rxenable[0] =
172 rtlpriv->dm.rfpath_rxenable[1] = true;
173 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
174 if (rtlpriv->dm.rfpath_rxenable[i])
177 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
179 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
181 rtlpriv->stats.rx_snr_db[i] =
182 (long)(p_drvinfo->rxsnr[i] / 2);
184 if (packet_match_bssid)
185 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
188 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
189 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
190 pstats->rx_pwdb_all = pwdb_all;
191 pstats->rxpower = rx_pwr_all;
192 pstats->recvsignalpower = rx_pwr_all;
194 if (pstats->is_ht && pstats->rate >= DESC92_RATEMCS8 &&
195 pstats->rate <= DESC92_RATEMCS15)
196 max_spatial_stream = 2;
198 max_spatial_stream = 1;
200 for (i = 0; i < max_spatial_stream; i++) {
201 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
203 if (packet_match_bssid) {
205 pstats->signalquality = (u8)(evm &
207 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
213 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
215 else if (rf_rx_num != 0)
216 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
217 total_rssi /= rf_rx_num));
220 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
221 struct sk_buff *skb, struct rtl_stats *pstats,
222 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
224 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
225 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
227 struct ieee80211_hdr *hdr;
232 bool packet_matchbssid, packet_toself, packet_beacon = false;
234 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
236 hdr = (struct ieee80211_hdr *)tmp_buf;
237 fc = hdr->frame_control;
238 cfc = le16_to_cpu(fc);
239 type = WLAN_FC_GET_TYPE(fc);
242 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
243 ether_addr_equal(mac->bssid,
244 (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
245 (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
247 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
249 packet_toself = packet_matchbssid &&
250 ether_addr_equal(praddr, rtlefuse->dev_addr);
252 if (ieee80211_is_beacon(fc))
253 packet_beacon = true;
255 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
256 packet_matchbssid, packet_toself, packet_beacon);
257 rtl_process_phyinfo(hw, tmp_buf, pstats);
260 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
261 struct ieee80211_rx_status *rx_status, u8 *pdesc,
264 struct rx_fwinfo *p_drvinfo;
265 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
266 struct ieee80211_hdr *hdr;
267 bool first_ampdu = false;
269 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
270 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
271 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
272 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
273 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
274 stats->hwerror = (u16)(stats->crc | stats->icv);
275 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
277 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
278 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
279 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
280 stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
281 && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
282 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
283 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
284 stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
285 stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
290 rx_status->freq = hw->conf.chandef.chan->center_freq;
291 rx_status->band = hw->conf.chandef.chan->band;
294 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
296 if (stats->rx_is40Mhzpacket)
297 rx_status->flag |= RX_FLAG_40MHZ;
300 rx_status->flag |= RX_FLAG_HT;
302 rx_status->flag |= RX_FLAG_MACTIME_START;
304 /* hw will set stats->decrypted true, if it finds the
305 * frame is open data frame or mgmt frame,
306 * hw will not decrypt robust managment frame
307 * for IEEE80211w but still set stats->decrypted
308 * true, so here we should set it back to undecrypted
309 * for IEEE80211w frame, and mac80211 sw will help
311 if (stats->decrypted) {
312 hdr = (struct ieee80211_hdr *)(skb->data +
313 stats->rx_drvinfo_size + stats->rx_bufshift);
315 if ((_ieee80211_is_robust_mgmt_frame(hdr)) &&
316 (ieee80211_has_protected(hdr->frame_control)))
317 rx_status->flag &= ~RX_FLAG_DECRYPTED;
319 rx_status->flag |= RX_FLAG_DECRYPTED;
322 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
323 stats->is_ht, stats->rate, first_ampdu);
325 rx_status->mactime = stats->timestamp_low;
327 p_drvinfo = (struct rx_fwinfo *)(skb->data +
329 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
333 /*rx_status->qual = stats->signal; */
334 rx_status->signal = stats->recvsignalpower + 10;
339 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
340 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
341 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
342 struct ieee80211_sta *sta,
344 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
346 struct rtl_priv *rtlpriv = rtl_priv(hw);
347 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
348 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
349 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
350 u8 *pdesc = pdesc_tx;
352 __le16 fc = hdr->frame_control;
353 u8 reserved_macid = 0;
354 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
355 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
356 bool lastseg = (!(hdr->frame_control &
357 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
358 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
362 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
363 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
364 "DMA mapping error");
367 if (mac->opmode == NL80211_IFTYPE_STATION) {
369 } else if (mac->opmode == NL80211_IFTYPE_AP ||
370 mac->opmode == NL80211_IFTYPE_ADHOC) {
372 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
375 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
377 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
379 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
381 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
387 if (rtlpriv->dm.useramask) {
388 /* set txdesc macId */
389 if (ptcb_desc->mac_id < 32) {
390 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
391 reserved_macid |= ptcb_desc->mac_id;
394 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
396 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
397 DESC92_RATEMCS0) ? 1 : 0));
399 if (rtlhal->version == VERSION_8192S_ACUT) {
400 if (ptcb_desc->hw_rate == DESC92_RATE1M ||
401 ptcb_desc->hw_rate == DESC92_RATE2M ||
402 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
403 ptcb_desc->hw_rate == DESC92_RATE11M) {
404 ptcb_desc->hw_rate = DESC92_RATE12M;
408 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
410 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
411 SET_TX_DESC_TX_SHORT(pdesc, 0);
413 /* Aggregation related */
414 if (info->flags & IEEE80211_TX_CTL_AMPDU)
415 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
417 /* For AMPDU, we must insert SSN into TX_DESC */
418 SET_TX_DESC_SEQ(pdesc, seq_number);
420 /* Protection mode related */
421 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
422 /* We choose only one protection mode to execute */
423 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
424 !ptcb_desc->cts_enable) ? 1 : 0));
425 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
427 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
429 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
430 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
431 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
432 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
434 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
435 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
438 /* Set Bandwidth and sub-channel settings. */
440 if (ptcb_desc->packet_bw) {
441 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
442 /* use duplicated mode */
443 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
445 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
446 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
447 mac->cur_40_prime_sc);
450 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
451 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
454 /* 3 Fill necessary field in First Descriptor */
456 SET_TX_DESC_LINIP(pdesc, 0);
457 SET_TX_DESC_OFFSET(pdesc, 32);
458 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
461 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
463 /* Fill security related */
464 if (info->control.hw_key) {
465 struct ieee80211_key_conf *keyconf;
467 keyconf = info->control.hw_key;
468 switch (keyconf->cipher) {
469 case WLAN_CIPHER_SUITE_WEP40:
470 case WLAN_CIPHER_SUITE_WEP104:
471 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
473 case WLAN_CIPHER_SUITE_TKIP:
474 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
476 case WLAN_CIPHER_SUITE_CCMP:
477 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
480 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
487 SET_TX_DESC_PACKET_ID(pdesc, 0);
489 /* We will assign magement queue to BK. */
490 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
492 /* Alwasy enable all rate fallback range */
493 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
495 /* Fix: I don't kown why hw use 6.5M to tx when set it */
496 SET_TX_DESC_USER_RATE(pdesc,
497 ptcb_desc->use_driver_rate ? 1 : 0);
499 /* Set NON_QOS bit. */
500 if (!ieee80211_is_data_qos(fc))
501 SET_TX_DESC_NON_QOS(pdesc, 1);
505 /* Fill fields that are required to be initialized
506 * in all of the descriptors */
508 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
509 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
512 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
515 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
517 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
520 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
521 bool firstseg, bool lastseg, struct sk_buff *skb)
523 struct rtl_priv *rtlpriv = rtl_priv(hw);
524 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
525 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
526 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
528 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
531 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
532 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
533 "DMA mapping error");
536 /* Clear all status */
537 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
539 /* This bit indicate this packet is used for FW download. */
540 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
541 /* For firmware downlaod we only need to set LINIP */
542 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
544 /* 92SE must set as 1 for firmware download HW DMA error */
545 SET_TX_DESC_FIRST_SEG(pdesc, 1);
546 SET_TX_DESC_LAST_SEG(pdesc, 1);
548 /* 92SE need not to set TX packet size when firmware download */
549 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
550 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
551 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
554 SET_TX_DESC_OWN(pdesc, 1);
555 } else { /* H2C Command Desc format (Host TXCMD) */
556 /* 92SE must set as 1 for firmware download HW DMA error */
557 SET_TX_DESC_FIRST_SEG(pdesc, 1);
558 SET_TX_DESC_LAST_SEG(pdesc, 1);
560 SET_TX_DESC_OFFSET(pdesc, 0x20);
562 /* Buffer size + command header */
563 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
564 /* Fixed queue of H2C command */
565 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
567 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
569 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
570 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
573 SET_TX_DESC_OWN(pdesc, 1);
578 void rtl92se_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
579 u8 desc_name, u8 *val)
585 SET_TX_DESC_OWN(pdesc, 1);
587 case HW_DESC_TX_NEXTDESC_ADDR:
588 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
591 RT_ASSERT(false, "ERR txdesc :%d not process\n",
599 SET_RX_STATUS_DESC_OWN(pdesc, 1);
601 case HW_DESC_RXBUFF_ADDR:
602 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
604 case HW_DESC_RXPKT_LEN:
605 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
608 SET_RX_STATUS_DESC_EOR(pdesc, 1);
611 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
618 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
625 ret = GET_TX_DESC_OWN(desc);
627 case HW_DESC_TXBUFF_ADDR:
628 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
631 RT_ASSERT(false, "ERR txdesc :%d not process\n",
638 ret = GET_RX_STATUS_DESC_OWN(desc);
640 case HW_DESC_RXPKT_LEN:
641 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
644 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
652 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
654 struct rtl_priv *rtlpriv = rtl_priv(hw);
655 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));